1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/* ui-blob.c: show blob content
*
* Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
#include "ui-blob.h"
#include "html.h"
#include "ui-shared.h"
struct walk_tree_context {
const char *match_path;
unsigned char *matched_sha1;
unsigned int found_path:1;
unsigned int file_only:1;
};
static int walk_tree(const unsigned char *sha1, struct strbuf *base,
const char *pathname, unsigned mode, int stage, void *cbdata)
{
struct walk_tree_context *walk_tree_ctx = cbdata;
if (walk_tree_ctx->file_only && !S_ISREG(mode))
return READ_TREE_RECURSIVE;
if (strncmp(base->buf, walk_tree_ctx->match_path, base->len)
|| strcmp(walk_tree_ctx->match_path + base->len, pathname))
return READ_TREE_RECURSIVE;
memmove(walk_tree_ctx->matched_sha1, sha1, 20);
walk_tree_ctx->found_path = 1;
return 0;
}
int cgit_ref_path_exists(const char *path, const char *ref, int file_only)
{
unsigned char sha1[20];
unsigned long size;
struct pathspec_item path_items = {
.match = path,
.len = strlen(path)
};
struct pathspec paths = {
.nr = 1,
.items = &path_items
};
struct walk_tree_context walk_tree_ctx = {
.match_path = path,
.matched_sha1 = sha1,
.found_path = 0,
.file_only = file_only
};
if (cgit_get_sha1(ref, sha1))
return 0;
if (sha1_object_info(sha1, &size) != OBJ_COMMIT)
return 0;
read_tree_recursive(lookup_commit_reference(sha1)->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
return walk_tree_ctx.found_path;
}
int cgit_print_file(char *path, const char *head, int file_only)
{
unsigned char sha1[20];
enum object_type type;
char *buf;
unsigned long size;
struct commit *commit;
struct pathspec_item path_items = {
.match = path,
.len = strlen(path)
};
struct pathspec paths = {
.nr = 1,
.items = &path_items
};
struct walk_tree_context walk_tree_ctx = {
.match_path = path,
.matched_sha1 = sha1,
.found_path = 0,
.file_only = file_only
};
if (cgit_get_sha1(head, sha1))
return -1;
type = sha1_object_info(sha1, &size);
if (type == OBJ_COMMIT) {
commit = lookup_commit_reference(sha1);
read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
if (!walk_tree_ctx.found_path)
return -1;
type = sha1_object_info(sha1, &size);
}
if (type == OBJ_BAD)
return -1;
buf = read_sha1_file(sha1, &type, &size);
if (!buf)
return -1;
buf[size] = '\0';
html_raw(buf, size);
free(buf);
return 0;
}
void cgit_print_blob(const char *hex, char *path, const char *head, int file_only)
{
unsigned char sha1[20];
enum object_type type;
char *buf;
unsigned long size;
struct commit *commit;
struct pathspec_item path_items = {
.match = path,
.len = path ? strlen(path) : 0
};
struct pathspec paths = {
.nr = 1,
.items = &path_items
};
struct walk_tree_context walk_tree_ctx = {
.match_path = path,
.matched_sha1 = sha1,
.found_path = 0,
.file_only = file_only
};
if (hex) {
if (get_sha1_hex(hex, sha1)) {
cgit_print_error_page(400, "Bad request",
"Bad hex value: %s", hex);
return;
}
} else {
if (cgit_get_sha1(head, sha1)) {
cgit_print_error_page(404, "Not found",
"Bad ref: %s", head);
return;
}
}
type = sha1_object_info(sha1, &size);
if ((!hex) && type == OBJ_COMMIT && path) {
commit = lookup_commit_reference(sha1);
read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
type = sha1_object_info(sha1,&size);
}
if (type == OBJ_BAD) {
cgit_print_error_page(404, "Not found",
"Bad object name: %s", hex);
return;
}
buf = read_sha1_file(sha1, &type, &size);
if (!buf) {
cgit_print_error_page(500, "Internal server error",
"Error reading object %s", hex);
return;
}
buf[size] = '\0';
if (buffer_is_binary(buf, size))
ctx.page.mimetype = "application/octet-stream";
else
ctx.page.mimetype = "text/plain";
ctx.page.filename = path;
html("X-Content-Type-Options: nosniff\n");
html("Content-Security-Policy: default-src 'none'\n");
cgit_print_http_headers();
html_raw(buf, size);
free(buf);
}
|
